‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Wednesday, June 12, 2019 10:26 PM, Stuart Henderson <s...@spacehopper.org> wrote:
> If you're on an old BIOS revision for the APU (more than a couple of > months old), try updating, they have enabled "core performance boost" > which increases speed of a single core if the others are not under > heavy load. > > I haven't done network benchmarks but there is a noticable improvement > in some other things (md5 -tt goes from 12 -> 9 seconds). > > To update BIOS from OpenBSD, pkg_add flashrom and download the BIOS > version for your board (https://pcengines.github.io/). Go to serial > console and reboot in single-user mode (boot -s), mount -a, and run > "flashrom --programmer internal -w apuX_vXXX.rom". Then reboot back > as normal. > > If you'd like to compare benchmarks, the feature can be toggled > from the setup menu in BIOS. > > https://blog.3mdeb.com/2019/2019-02-14-enabling-cpb-on-pcengines-apu2/ Thanks Stuart for the hint, that sounds fantastic. I bought my APU4 recently so it has a few months old BIOS (v4.0.24 to be precise) and based on the change log it also seems to include that "core performance boost". I need to reboot and check the BIOS settings first see if this new setting is enabled or not by default. I have the feeling it is not enabled. Anyway I think I will upgrade the BIOS to the latest v4.9.0.6. Will keep you posted as soon as I check this but right no I can't reboot the box.
